US2820981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door stop and closer
Assignee: Individual
•
Filing: 1953-11-04
•
Granted: 1958-01-28
•
Expires: 1973-11-04
Abstract
No abstract record available.
Inventors
- 👤 Lester A Klee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:01
CPC Classifications
E; E05; E05F; E05F1/00; E05F1/08; E05F1/10; E05F1/1041; E05F1/1066; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/51; Y10T; Y10T292/00; Y10T292/28; Y10T292/283
Claims Analysis
Total Claims: 0
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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) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |