US2910996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation pipe coupling
Assignee: Individual
•
Filing: 1957-03-12
•
Granted: 1959-11-03
•
Expires: 1977-03-12
Abstract
No abstract record available.
Inventors
- 👤 Delos G A Coover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:37
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/50; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7722; Y10T137/7837; Y10T137/7854; Y10T137/7856; Y10T137/7879; Y10T137/7888; Y10T137/7891
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |