Patent US3731026A successfully refreshed from Google Patents.
Patent US3078496A successfully refreshed from Google Patents.
US3078496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web cleaning apparatus
Assignee: Oxy Dry Sprayer Corp
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Filing: 1960-10-04
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Granted: 1963-02-26
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Expires: 1980-10-04
Abstract
No abstract record available.
Inventors
- 👤 Leo L Doran
- 👤 Maurice H Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:31
CPC Classifications
D; D06; D06B; D06B1/00; D06B1/08; B; B41; B41F; B41F23/00; B41F23/002
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
87 words
IN A WEB CLEANING DEVICE, AN AIR CHAMBER AND A SUCTION CHAMBER, DIVIDING MEANS INTERMEDIATE SAID AIR CHAMBER AND SAID SUCTION CHAMBER FOR ADJUSTING THE VELOCITY OF THE AIR COMING FROM SAID AIR CHAMBER, PASSING OVER THE WEB AND ENTERING SAID SUCTION CHAMBER AND FOR MAINTAINING THE VELOCITY OF THE AIR SUBSTANTIALLY CONSTANT WHEN COMING FROM SAID AIR CHAMBER, PASSING OVER THE WEB AND ENTERING SAID SUCTION CHAMBER, AND MEANS FOR ADJUSTING THE POSITION OF SAID DIVIDING MEANS FOR CHANGING THE AIR VELOCITY BUT MAINTAINING THE VELOCITY
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |