US2227835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Punching machine
Assignee: Individual
•
Filing: 1939-05-24
•
Granted: 1941-01-07
•
Expires: 1959-05-24
Abstract
No abstract record available.
Inventors
- 👤 Harry T Kelsh
- 👤 Edward W Magruder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:35
CPC Classifications
G; G01; G01C; G01C15/00; G01C15/02; G01C11/00; G01C11/04; G01C11/06; G01C11/28; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/654; Y10T83/6545; Y10T83/6547; Y10T83/6561; Y10T83/6563; Y10T83/6564; Y10T83/869; Y10T83/8742; Y10T83/8743; Y10T83/875; Y10T83/8821; Y10T83/8841; Y10T83/885
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-01-07 | 1944-07-08 | 1945-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-01-07 | 1948-07-08 | 1949-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-01-07 | 1952-07-08 | 1953-01-07 | $7700.00 | Window Closed / Lapsed |