US3156489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforcement for end of a tubular member
Assignee: Dowsmith Inc
•
Filing: 1963-03-12
•
Granted: 1964-11-10
•
Expires: 1983-03-12
Abstract
No abstract record available.
Inventors
- 👤 Wayne A Deringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:58
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/04; F16L23/08; F16L47/00; F16L47/14; Y; Y10; Y10S; Y10S285/00; Y10S285/919; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T403/00; Y10T403/47; Y10T403/477
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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |