US2260712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling device
Assignee: Individual
•
Filing: 1938-07-30
•
Granted: 1941-10-28
•
Expires: 1958-07-30
Abstract
No abstract record available.
Inventors
- 👤 William H Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:24
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; F16L37/088; F16L37/0885; G; G03; G03B; G03B11/00; G03B17/00; G03B17/02; G03B17/12; G03B17/56; G03B17/566
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) | 1944-10-27 | 1945-04-28 | 1945-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-10-27 | 1949-04-28 | 1949-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-10-27 | 1953-04-28 | 1953-10-28 | $7700.00 | Window Closed / Lapsed |