US3476932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rail vehicle location and control system
Assignee: General Electric Co
•
Filing: 1967-03-14
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Granted: 1969-11-04
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Expires: 1987-03-14
Abstract
No abstract record available.
Inventors
- 👤 Norman C Gittinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:44
CPC Classifications
B; B61; B61L; B61L23/00; B61L23/08; B61L23/14; B61L23/16; B61L23/166; B61L1/00; B61L1/18; B61L1/181; B61L1/187; B61L3/00; B61L3/16; B61L3/22; B61L3/24; B61L3/246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |