US2947843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehumidifying covers
Assignee: Individual
•
Filing: 1958-09-03
•
Granted: 1960-08-02
•
Expires: 1978-09-03
Abstract
No abstract record available.
Inventors
- 👤 Burman Henry Hal
- 👤 Harry H Wayner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:59
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F2003/144
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB205311A
Cited
US1544218A
Cited
US1929139A
Cited
US2091746A
Cited
US2179256A
Cited
FR977992A
Cited
US2565011A
Cited
US2548363A
Cited
GB742607A
Cited
US2846557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |