US2604316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap disk spring
Assignee: John B. Pierce Laboratory
•
Filing: 1945-12-19
•
Granted: 1952-07-22
•
Expires: 1965-12-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph F O'brien
- 👤 John B Cataldo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:35
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/32; F16F1/322; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49609
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1593511A
Cited
US2015545A
Cited
US1654320A
Cited
US1865185A
Cited
US2042754A
Cited
US2291455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |