US3500436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid transfer device
Assignee: AT&T Teletype Corp
•
Filing: 1968-01-08
•
Granted: 1970-03-10
•
Expires: 1988-01-08
Abstract
No abstract record available.
Inventors
- 👤 Robert W Nordin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:15
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/07; B41J2/075; B41J2/08; B41J2/095
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3060429A
Cited
US3278940A
Cited
US3369252A
Cited
US3334351A
Cited
US3298030A
Cited
US3287734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |