US2654684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture impervious absorbent sheet for covering work surfaces in chemical laboratories and the like
Assignee: Individual
•
Filing: 1948-10-07
•
Granted: 1953-10-06
•
Expires: 1968-10-07
Abstract
No abstract record available.
Inventors
- 👤 Heikin Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:59
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
References Cited (Backward Citations)
US1609222A
Cited
US2032845A
Cited
US2226589A
Cited
US2013119A
Cited
US2068975A
Cited
US2385319A
Cited
US2428385A
Cited
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 |