Patent US3427900A successfully refreshed from Google Patents.
US3427900A
Expired / Lapsed
US
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Miniature differential
Assignee: Designatronics Inc
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Filing: 1966-10-25
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Granted: 1969-02-18
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Expires: 1986-10-25
Abstract
No abstract record available.
Inventors
- 👤 Melvin F Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:52
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/06; F16H48/08; F16H2048/082; F16H2048/085; F16H2048/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A DIFFERENTIAL GEARING ASSEMBLY COMPRISING: (A) A SINGLE ELONGATED, TUBULAR BEARING MEMBER HAVING MEANS FOR SECURING A SHAFT THERETO; (B) FIRST AND SECOND GEARS MOUNTED DIRECTLY ON SAID BEARING PROXIMATE THE ENDS THEREOF; AND (C) A ROTATABLE PINION GEAR SECURED TO SAID BEARING MEMBER AT THE CENTRAL PORTION THEREOF AND IN MESHING ENGAGEMENT WITH SAID FIRST AND SECOND GEARS.
Claim 2
Dependent Claim
59 words
A DIFFERENTIAL GEARING ASSEMBLY COMPRISING: (A) A SINGLE ELONGATED, TUBULAR BEARING MEMBER HAVING MEANS FOR SECURING A SHAFT THERETO; (B) FIRST AND SECOND GEARS MOUNTED DIRECTLY ON SAID BEARING PROXIMATE THE ENDS THEREOF; AND (C) A ROTATABLE PINION GEAR SECURED TO SAID BEARING MEMBER AT THE CENTRAL PORTION THEREOF AND IN MESHING ENGAGEMENT WITH SAID FIRST AND SECOND GEARS.
References Cited (Backward Citations)
US475929A
Cited
US1078837A
Cited
US1686431A
Cited
US1892573A
Cited
US2309441A
Cited
US2393203A
Cited
US2774253A
Cited
US3050301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |