US2990866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock washer having axially extending tabs of severable, compressible material
Assignee: Individual
•
Filing: 1957-08-09
•
Granted: 1961-07-04
•
Expires: 1977-08-09
Abstract
No abstract record available.
Inventors
- 👤 James C Macy
- 👤 Alfred L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:37
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/24; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/93
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2250343A
Cited
US2197220A
Cited
US2492115A
Cited
US2639832A
Cited
US2561679A
Cited
FR1105172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |