Patent US2654684A successfully refreshed from Google Patents.
US2654684A
Expired / Lapsed
US
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Moisture impervious absorbent sheet for covering work surfaces in chemical laboratories and the like
Assignee: Individual
•
Filing: 1948-10-07
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Granted: 1953-10-06
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Expires: 1968-10-07
Abstract
No abstract record available.
Inventors
- 👤 Heikin Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:09
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/12; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T428/00; Y10T428/14; Y10T428/1438; Y10T428/1443; Y10T428/249921; Y10T428/249953; Y10T428/249962; Y10T428/249964; Y10T428/249965; Y10T428/249982; Y10T428/249983; Y10T428/28; Y10T428/2804; Y10T428/2848
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
62 words
IN COMBINATION, A PIECE OF FURNITURE COMPRISING A WORK SURFACE AND A PROTECTIVE SHEET THEREFOR, THE PROTECTIVE SHEET COMPRISING A LAMINA OF BLOTTING PAPER FORMING ONE FACE OF THE SHEET, A LAMINA OF METAL FOIL BACKING THE BLOTTING PAPER AND BONDED THERETO, A COATING OF PRESSURE-RESPONSIVE ADHESIVE ON THE FACE OF THE PROTECTIVE SHEET THAT IS OPPOSITE THE BLOTTING PAPER, THE PROTECTIVE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |