US2644964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nipple threading machine
Assignee: Individual
•
Filing: 1949-02-23
•
Granted: 1953-07-14
•
Expires: 1969-02-23
Abstract
No abstract record available.
Inventors
- 👤 Donald D R Mackintosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:06
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/02; B23G1/04; Y; Y10; Y10T; Y10T408/00; Y10T408/13; Y10T408/15; Y10T408/16; Y10T408/17; Y10T408/173; Y10T408/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2109269A
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US2273845A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |