US2648997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable link
Assignee: DEARBORN MOTORS Corp
•
Filing: 1950-04-12
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Granted: 1953-08-18
•
Expires: 1970-04-12
Abstract
No abstract record available.
Inventors
- 👤 Frederick D Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:14
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/002; A01B59/004; Y; Y10; Y10T; Y10T403/00; Y10T403/29; Y10T403/291; Y10T403/32; Y10T403/32008; Y10T403/32057; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2151
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US125999A
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US310767A
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US579334A
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CA200236A
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US797635A
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US1012008A
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US1061060A
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US1411279A
Cited
US2462588A
Cited
US2512501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |