US2821877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable hydraulic press tool
Assignee: Greenlee Brothers and Co
•
Filing: 1956-02-02
•
Granted: 1958-02-04
•
Expires: 1976-02-02
Abstract
No abstract record available.
Inventors
- 👤 Edwin C Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:09
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/04; H01R43/042; H01R43/0427
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2158855A
Cited
US2329385A
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US2309605A
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US2372942A
Cited
US2693218A
Cited
US2722859A
Cited
US2761339A
Cited
US2729063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |