Patent US4219112A successfully refreshed from Google Patents.
US2841019A
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Infinitely variable friction disk power transmission
Assignee: Individual
•
Filing: 1954-09-27
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Granted: 1958-07-01
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Expires: 1974-09-27
Abstract
No abstract record available.
Inventors
- 👤 Beier Alice
- 👤 Beier Hans Herbert
- 👤 Beier Regine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:34
CPC Classifications
F; F16; F16H; F16H15/00; F16H15/02; F16H15/04; F16H15/06; F16H15/08; F16H15/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR399506A
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US1017893A
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GB235562A
Cited
GB295131A
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US2563896A
Cited
US2623396A
Cited
US2591753A
Cited
FR1028160A
Cited
DE897942C
Cited
AT176410B
Cited
FR1064150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |