US2826286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety locking device for a punch press or the like
Assignee: Individual
•
Filing: 1953-07-20
•
Granted: 1958-03-11
•
Expires: 1973-07-20
Abstract
No abstract record available.
Inventors
- 👤 Boyce Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:03
CPC Classifications
F; F16; F16P; F16P3/00; F16P3/12; F16P3/14; F16P3/144; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2566835A
Cited
US999850A
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US1040705A
Cited
US1357643A
Cited
US1958128A
Cited
US2082210A
Cited
US1995763A
Cited
US2199501A
Cited
US2371727A
Cited
US2632821A
Cited
US2683515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |