US2956820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible pipe coupling for beaded conduits having a plurality of pivotal back-up elements
Assignee: ON MARK COUPLINGS Inc
•
Filing: 1957-07-01
•
Granted: 1960-10-18
•
Expires: 1977-07-01
Abstract
No abstract record available.
Inventors
- 👤 Cenzo Herbert A De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:47
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/10; F16L27/113; F16L27/1136; F16L19/00; F16L19/02; F16L19/025; F16L19/028; F16L27/12; F16L27/127; F16L27/1274; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5187; Y10T403/00; Y10T403/45; Y10T403/451; Y10T403/452; Y10T403/455
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US406561A
Cited
US915956A
Cited
US1440207A
Cited
GB253581A
Cited
US1926422A
Cited
US2355166A
Cited
US2497441A
Cited
US2781207A
Cited
US2826437A
Cited
US2778661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |