Patent US2451636A successfully refreshed from Google Patents.
US2451636A
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US
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Cutting machine
Assignee: Harris Corp
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Filing: 1946-06-21
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Granted: 1948-10-19
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Expires: 1966-06-21
Abstract
No abstract record available.
Inventors
- 👤 William R Spiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:14
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/26; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/926; Y10S411/927; Y10S411/948; Y10S411/955; Y10S411/974; Y10S411/978; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2151; Y10T83/00; Y10T83/869; Y10T83/8696
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-19 | 1952-04-19 | 1952-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-19 | 1956-04-19 | 1956-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-19 | 1960-04-19 | 1960-10-19 | $7700.00 | Window Closed / Lapsed |