US2997905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heated cutting die means
Assignee: Boston Cutting Die Co
•
Filing: 1956-10-15
•
Granted: 1961-08-29
•
Expires: 1976-10-15
Abstract
No abstract record available.
Inventors
- 👤 Ernest O Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:52
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/26; B26; B26F; B26F1/00; B26F1/26; B26F3/00; B26F3/06; B29C35/00; B29C35/02; B29C35/04; B29C35/041; B29C2035/042; B29C2035/043; B29C65/28; Y; Y10; Y10T; Y10T83/00; Y10T83/283; Y10T83/293
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE91622C
Cited
US337129A
Cited
US490824A
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US904569A
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US1449445A
Cited
US1637715A
Cited
US2420400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |