US3440416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hotbox detector system
Assignee: RAILTRON CORP
•
Filing: 1966-02-09
•
Granted: 1969-04-22
•
Expires: 1986-02-09
Abstract
No abstract record available.
Inventors
- 👤 William M Pelino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:44
CPC Classifications
B; B61; B61K; B61K9/00; B61K9/04; B61K9/06; G; G01; G01J; G01J5/00; G01J5/02; G01J5/06; G01J5/061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2856539A
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US2818508A
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US2880309A
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US3095171A
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US3120936A
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US3065347A
Cited
US3253140A
Cited
US3313933A
Cited
US3244875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |