US939958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary punching-machine.
Assignee: Individual
•
Filing: 1909-04-08
•
Granted: 1909-11-09
•
Expires: 1929-04-08
Abstract
No abstract record available.
Inventors
- 👤 Margaret Koelsch
- 👤 Frank Koelsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:01
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/02; B21D28/12; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8727; Y10T83/8732; Y10T83/8742; Y10T83/8821; Y10T83/8841; Y10T83/8843
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) | 1912-11-08 | 1913-05-10 | 1913-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-11-08 | 1917-05-10 | 1917-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-11-08 | 1921-05-10 | 1921-11-09 | $7700.00 | Window Closed / Lapsed |