US1447769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press
Assignee: GEORGE W DOVER Inc
•
Filing: 1921-06-22
•
Granted: 1923-03-06
•
Expires: 1941-06-22
Abstract
No abstract record available.
Inventors
- 👤 George W Dover
- 👤 William S Glines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:14
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/06; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53826
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) | 1926-03-05 | 1926-09-04 | 1927-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-03-05 | 1930-09-04 | 1931-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-03-05 | 1934-09-04 | 1935-03-06 | $7700.00 | Window Closed / Lapsed |