US2276244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterproof and greaseproof paper
Assignee: GARDNER RICHARDSON CO
•
Filing: 1939-11-22
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Granted: 1942-03-10
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Expires: 1959-11-22
Abstract
No abstract record available.
Inventors
- 👤 Harry C Fischer
- 👤 James F Thompson
- 👤 Walter E Sooy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:05
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/52; D21H23/56; D21H23/58; D21H23/62; D21H5/00; D21H5/0005; D21H5/0025; D21H5/003; D21H5/0032; D21H5/0037; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31761; Y10T428/31768; Y10T428/31772; Y10T428/31775; Y10T428/31971; Y10T428/31975
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-03-09 | 1945-09-08 | 1946-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-03-09 | 1949-09-08 | 1950-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-03-09 | 1953-09-08 | 1954-03-10 | $7700.00 | Window Closed / Lapsed |