US2677422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary window cutting mechanism
Assignee: FL Smithe Machine Co Inc
•
Filing: 1950-04-28
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Granted: 1954-05-04
•
Expires: 1970-04-28
Abstract
No abstract record available.
Inventors
- 👤 Novick Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:24
CPC Classifications
B; B31; B31B; B31B50/00; B31B70/00; B31B70/74; B31B70/81; B31B70/82; B31B70/83; B31B50/74; B31B50/81; B31B50/82; B31B50/83; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/483; Y10T83/4836
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US619967A
Cited
GB190707814A
Cited
US999844A
Cited
US1202122A
Cited
US1373760A
Cited
US1581236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |