Patent US3543589A successfully refreshed from Google Patents.
US3543589A
Expired / Lapsed
US
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Cam with balanced spring-loaded followers
Assignee: Philips North America LLC
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Filing: 1967-12-20
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Granted: 1970-12-01
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Expires: 1987-12-20
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Loughran Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:27
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/10; H01H43/12; H01H43/125; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18288; Y10T74/21; Y10T74/2101; Y10T74/2107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1317365A
Cited
US671330A
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US2107373A
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US2185882A
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US2399906A
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US2489626A
Cited
US2953667A
Cited
US3106620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |