US3427900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature differential
Assignee: Designatronics Inc
•
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 03:29
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
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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 |