Patent US5541512A successfully refreshed from Google Patents.
US3200013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple roll clearing
Assignee: Pneumafil Corp
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Filing: 1963-08-22
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Granted: 1965-08-10
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Expires: 1983-08-22
Abstract
No abstract record available.
Inventors
- 👤 Alfred C Morrow
- 👤 Ira L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:07
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/60; D01H5/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
MEANS FOR SIMULTANEOUSLY CLEARING FOREIGN MATTER FROM TWO RELATIVELY MOVING SURFACES MOVING ABOUT SEPARATE AXES OF ROTATION, SAID MEANS COMPRISING: ELONGATED WIPING MEANS CONTACTING THE RELATIVELY MOVING SURFACES; SUPPORTING MEANS FIXEDLY RETAINING ONE END OF SAID WIPING MEANS WITH RESPECT TO SAID AXES OF ROTATION, WHILE PERMITTING THE OTHER END TO MOVE FREELY; AND RESILIENT URGING MEANS PRESSING AGAINST A PORTION OF SAID WIPING MEANS TO BRING SAME AGAINST SAID SURFACES.
Claim 2
Dependent Claim
71 words
MEANS FOR SIMULTANEOUSLY CLEARING FOREIGN MATTER FROM TWO RELATIVELY MOVING SURFACES MOVING ABOUT SEPARATE AXES OF ROTATION, SAID MEANS COMPRISING: ELONGATED WIPING MEANS CONTACTING THE RELATIVELY MOVING SURFACES; SUPPORTING MEANS FIXEDLY RETAINING ONE END OF SAID WIPING MEANS WITH RESPECT TO SAID AXES OF ROTATION, WHILE PERMITTING THE OTHER END TO MOVE FREELY; AND RESILIENT URGING MEANS PRESSING AGAINST A PORTION OF SAID WIPING MEANS TO BRING SAME AGAINST SAID SURFACES.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |