US1050422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making couplings.
Assignee: Individual
•
Filing: 1911-12-26
•
Granted: 1913-01-14
•
Expires: 1931-12-26
Abstract
No abstract record available.
Inventors
- 👤 Charles W Birchwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:27
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0619; F16C11/0623; Y; Y10; Y10S; Y10S16/00; Y10S16/42; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49853; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32631; Y10T403/32795
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) | 1916-01-14 | 1916-07-15 | 1917-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-01-14 | 1920-07-15 | 1921-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-01-14 | 1924-07-15 | 1925-01-14 | $7700.00 | Window Closed / Lapsed |