US3428383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheeled emergency care vehicle
Assignee: GRADUATE PAIN RESEARCH FOUNDAT
•
Filing: 1966-10-21
•
Granted: 1969-02-18
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Expires: 1986-10-21
Abstract
No abstract record available.
Inventors
- 👤 Joel J Nobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:01
CPC Classifications
A; A61; A61B; A61B50/00; A61B50/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US658999A
Cited
US1000268A
Cited
US1327242A
Cited
US1774236A
Cited
US1964805A
Cited
US2133347A
Cited
US2441678A
Cited
US3116849A
Cited
US3304116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |