US1638526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coping and punching machine
Assignee: Individual
•
Filing: 1927-02-02
•
Granted: 1927-08-09
•
Expires: 1947-02-02
Abstract
No abstract record available.
Inventors
- 👤 Hans L Christie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:48
CPC Classifications
B; B23; B23D; B23D23/00; B23D23/02; B23D31/00; Y; Y10; Y10T; Y10T83/00; Y10T83/808; Y10T83/811; Y10T83/814; Y10T83/825; Y10T83/869; Y10T83/8821; Y10T83/8828; Y10T83/8831; Y10T83/8834; Y10T83/8835
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) | 1930-08-08 | 1931-02-07 | 1931-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-08-08 | 1935-02-07 | 1935-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-08-08 | 1939-02-07 | 1939-08-09 | $7700.00 | Window Closed / Lapsed |