Patent US3501622A successfully refreshed from Google Patents.
US3501622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ticket credit accounting system
Assignee: FMC Corp
•
Filing: 1966-04-05
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Granted: 1970-03-17
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Expires: 1986-04-05
Abstract
No abstract record available.
Inventors
- 👤 Stanley M Weir
- 👤 Adrian P Elich
- 👤 Richard Heaney
- 👤 Chester Szymanski
- 👤 Frank S Chytil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:02
CPC Classifications
G; G07; G07B; G07B15/00; G07C; G07C9/00; G07C9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2659470A
Cited
US2783865A
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US3212615A
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US3356021A
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US2407196A
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US3287543A
Cited
US3222057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |