US2901269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split ring coupling
Assignee: Mcdowell Manufacturing Co
•
Filing: 1957-01-31
•
Granted: 1959-08-25
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Expires: 1977-01-31
Abstract
No abstract record available.
Inventors
- 👤 Clyde E Rickard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:57
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/12; F16L17/00; F16L17/02; F16L17/03; F16L17/035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US239827A
Cited
US2040155A
Cited
US2182797A
Cited
GB543733A
Cited
US2363006A
Cited
US2391100A
Cited
US2479960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |