US2871031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe coupling
Assignee: Keasbey and Mattison Co
•
Filing: 1955-10-11
•
Granted: 1959-01-27
•
Expires: 1975-10-11
Abstract
No abstract record available.
Inventors
- 👤 Daniel F Altemus
- 👤 Robert A Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:16
CPC Classifications
F; F16; F16L; F16L17/00; F16L17/02; F16L17/03; F16L17/035; Y; Y10; Y10T; Y10T403/00; Y10T403/16; Y10T403/1616
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US685818A
Cited
US1802177A
Cited
US1924020A
Cited
US2028668A
Cited
US2040155A
Cited
US2230725A
Cited
US2131839A
Cited
US2165052A
Cited
US2223434A
Cited
US2294142A
Cited
US2259940A
Cited
US2261566A
Cited
US2432592A
Cited
US2490907A
Cited
US2738992A
Cited
US2808275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |