US1275996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable coupling-sleeve.
Assignee: Individual
•
Filing: 1917-06-05
•
Granted: 1918-08-13
•
Expires: 1937-06-05
Abstract
No abstract record available.
Inventors
- 👤 Edmond Jules Francois Audemars
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:07
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/24
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) | 1921-08-12 | 1922-02-11 | 1922-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-08-12 | 1926-02-11 | 1926-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-08-12 | 1930-02-11 | 1930-08-13 | $7700.00 | Window Closed / Lapsed |