US3437070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature indicator
Assignee: LLOYD B CAMPBELL
•
Filing: 1966-01-28
•
Granted: 1969-04-08
•
Expires: 1986-01-28
Abstract
No abstract record available.
Inventors
- 👤 Lloyd B Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:47
CPC Classifications
G; G01; G01K; G01K11/00; G01K11/06; G01K11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2662018A
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US2674221A
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US2856885A
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US3046786A
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US3090236A
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US3233459A
Cited
US3260112A
Cited
US3177843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |