US2893507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
friedman
Assignee: —
•
Filing: —
•
Granted: 1959-07-07
•
Expires: 1976-07-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:53
CPC Classifications
A; A61; A61B; A61B7/00; A61B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2651380A
Cited
US2515471A
Cited
US2675087A
Cited
US904059A
Cited
US1110420A
Cited
US1157428A
Cited
US1275124A
Cited
US2375420A
Cited
US2445917A
Cited
US2486534A
Cited
US2581858A
Cited
US2587327A
Cited
US2704153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |