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US4561540A
Expired / Lapsed
US
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Microscope drape
Assignee: JPMorgan Chase Bank NA
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Filing: 1983-12-14
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Granted: 1985-12-31
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Expires: 2003-12-14
Abstract
Abstract A microscope drape fabricated from a very thin, transparent heat-resistant plastic film which is adapted to completely house an operating microscope including its support arms, is provided with an improved means for securing the tubular ocular housing extension of the drape to the oculars of the microscope which consists of a thin malleable strip attached to the ocular housing which permits the ocular housing to be secured to the microscope by crimping and folding over the metal strip after positioning the ocular housing on an ocular of a microscope.
Inventors
- 👤 James D. Hunter
- 👤 James J. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:08
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/0004; G02B21/0012; A; A61; A61B; A61B46/00; A61B46/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
98 words
A disposable microscope drape for positioning over an operating microscope in enclosing relationship thereto comprising an elongate, continuous, substantially tubular drape open at one end and terminating at the other end in at least one elongate, outwardly projecting cylinder-defining ocular housing for receiving an ocular of the microscope, said ocular housing having attached thereto an elongate strip of malleable metal having a length substantially less than that required to encircle said ocular housing whereby loose material may be gathered tightly and secured around the ocular of said microscope by manually folding and creasing the metal strip upon itself.
Claim 2
Dependent Claim
98 words
A disposable microscope drape for positioning over an operating microscope in enclosing relationship thereto comprising an elongate, continuous, substantially tubular drape open at one end and terminating at the other end in at least one elongate, outwardly projecting cylinder-defining ocular housing for receiving an ocular of the microscope, said ocular housing having attached thereto an elongate strip of malleable metal having a length substantially less than that required to encircle said ocular housing whereby loose material may be gathered tightly and secured around the ocular of said microscope by manually folding and creasing the metal strip upon itself.
Claim 3
Dependent Claim
13 words
The microscope drape of claim 1 wherein the malleable metal strip is aluminum.
Claim 4
Dependent Claim
22 words
The microscope drape of claim 2 wherein the strip of malleable metal has a thickness from about 3/1000 inches to 8/1000 inches.
Claim 5
Dependent Claim
19 words
The microscope drape of claim 2 wherein the strip of malleable metal has a thickness of about 5/1000 inches.
Claim 6
Dependent Claim
21 words
The microscope drape of claim 2 wherein the strip of malleable metal has a width of about 1/4 to 1 inch.
Claim 7
Dependent Claim
24 words
The microscope drape of claim 2 wherein the strip of malleable metal has a thickness of 5/1000 inches and a width of 1/2 inch.
Claim 8
Dependent Claim
18 words
The microscope drape of claim 1 wherein the end of the ocular housing terminates in a tapered shape.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-30 | 1989-07-01 | 1989-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-30 | 1993-07-01 | 1993-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-30 | 1997-07-01 | 1997-12-31 | $7700.00 | Window Closed / Lapsed |