Patent US1691213A successfully refreshed from Google Patents.
US1691213A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1927-02-14
•
Granted: 1928-11-13
•
Expires: 1947-02-14
Abstract
No abstract record available.
Inventors
- 👤 George W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:08
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/11; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44017; Y10T24/44641; Y10T24/44769; Y10T24/44906
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) | 1931-11-13 | 1932-05-14 | 1932-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-11-13 | 1936-05-14 | 1936-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-11-13 | 1940-05-14 | 1940-11-13 | $7700.00 | Window Closed / Lapsed |