US3028923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for weighing railroad cars
Assignee: ExxonMobil Oil Corp
•
Filing: 1958-02-06
•
Granted: 1962-04-10
•
Expires: 1978-02-06
Abstract
No abstract record available.
Inventors
- 👤 Locher J Hartley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:23
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/02; G01G19/04; G01G5/00; G01G5/04; G01G5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US932050A
Cited
GB112571A
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US1821661A
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US2047038A
Cited
US2373469A
Cited
US2477854A
Cited
US2482027A
Cited
US2754108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |