US2880309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot-box detector
Assignee: Servo Corp of America
•
Filing: 1958-06-30
•
Granted: 1959-03-31
•
Expires: 1978-06-30
Abstract
No abstract record available.
Inventors
- 👤 Cornelius A Gallagher
- 👤 William M Pelino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:15
CPC Classifications
B; B61; B61L; B61L1/00; B61L1/20; B61K; B61K9/00; B61K9/04; B61K9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2634058A
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US2619586A
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US2856539A
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US2818508A
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US2856540A
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US2818732A
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US2858450A
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US2829267A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |