US2927804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swivel coupling with adjustable packer means
Assignee: Chiksan Co
•
Filing: 1956-07-05
•
Granted: 1960-03-08
•
Expires: 1976-07-05
Abstract
No abstract record available.
Inventors
- 👤 Robert E Snyder
- 👤 Clyde B Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:53
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0804; F16L27/0808; F16L27/0824; F16L27/0828
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH87657A
Cited
US1866160A
Cited
FR42737E
Cited
US2293479A
Cited
US2295490A
Cited
US2396123A
Cited
US2451269A
Cited
US2448888A
Cited
US2511109A
Cited
US2717166A
Cited
DE872903C
Cited
US2704676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |