US2775281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deformable plastic nut having wire coil insert threads retained therein
Assignee: Heli Coil Corp
•
Filing: 1953-07-03
•
Granted: 1956-12-25
•
Expires: 1973-07-03
Abstract
No abstract record available.
Inventors
- 👤 Byrom J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:52
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/12; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/947
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US240892A
Cited
US923164A
Cited
US2354810A
Cited
US2439810A
Cited
US2604135A
Cited
GB665544A
Cited
GB682880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |