US1701202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doorcheck
Assignee: Individual
•
Filing: 1926-10-23
•
Granted: 1929-02-05
•
Expires: 1946-10-23
Abstract
No abstract record available.
Inventors
- 👤 Dudley Dana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:41
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/16; Y; Y10; Y10T; Y10T292/00; Y10T292/11; Y10T292/68; Y10T292/683
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) | 1932-02-05 | 1932-08-06 | 1933-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-02-05 | 1936-08-06 | 1937-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-02-05 | 1940-08-06 | 1941-02-05 | $7700.00 | Window Closed / Lapsed |