Patent US2278421A successfully refreshed from Google Patents.
US2253535A
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Differential driving mechanism
Assignee: MORSE BROS MACHINERY Co
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Filing: 1938-09-26
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Granted: 1941-08-26
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Expires: 1958-09-26
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Weinig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:11
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/02; B01D21/04; B01D21/06; B01D21/18; B01D21/20; B01D21/22; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18608; Y10T74/18704
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-08-25 | 1945-02-24 | 1945-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-25 | 1949-02-24 | 1949-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-25 | 1953-02-24 | 1953-08-26 | $7700.00 | Window Closed / Lapsed |