Patent US3510820A successfully refreshed from Google Patents.
US3510820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermistor
Assignee: US Philips Corp
•
Filing: 1967-10-04
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Granted: 1970-05-05
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Expires: 1987-10-04
Abstract
No abstract record available.
Inventors
- 👤 Gerard Heinrich Jonker
- 👤 Willem Noorlander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:52
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/08; H01C; H01C17/00; H01C17/30; H01C7/00; H01C7/04; H01C7/042; H01C7/043; H01C7/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2258646A
Cited
GB684547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |