Patent US3530718A successfully refreshed from Google Patents.
US3530718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric thermometer
Assignee: Research and Aviation Development Inc
•
Filing: 1967-10-17
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Granted: 1970-09-29
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Expires: 1987-10-17
Abstract
No abstract record available.
Inventors
- 👤 Walter R Ehlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:05
CPC Classifications
G; G01; G01K; G01K13/00; G01K13/20; G01K7/00; G01K7/16; G01K7/22; G01K7/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2753714A
Cited
US3153769A
Cited
US3250991A
Cited
US3217544A
Cited
US3402378A
Cited
US3377862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |