US1656758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic tapping machine
Assignee: POTTSTOWN MACHINE Co
•
Filing: 1923-06-29
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Granted: 1928-01-17
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Expires: 1943-06-29
Abstract
No abstract record available.
Inventors
- 👤 Elizabeth E Saylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:01
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/16; B23G1/20; Y; Y10; Y10S; Y10S470/00; Y10S470/907; Y10T; Y10T408/00; Y10T408/16; Y10T408/165; Y10T408/17; Y10T408/36; Y10T408/375; Y10T408/378; Y10T408/3784; Y10T408/47; Y10T408/494; Y10T408/52; Y10T408/54
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) | 1931-01-16 | 1931-07-18 | 1932-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-01-16 | 1935-07-18 | 1936-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-01-16 | 1939-07-18 | 1940-01-17 | $7700.00 | Window Closed / Lapsed |