US2939460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermittent surgical suction apparatus
Assignee: Individual
•
Filing: 1959-02-20
•
Granted: 1960-06-07
•
Expires: 1979-02-20
Abstract
No abstract record available.
Inventors
- 👤 Sorensen Charles Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:50
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/71; A61M1/74; A61M1/75; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4643
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1209846A
Cited
US1673811A
Cited
US1955140A
Cited
US2135148A
Cited
US2693198A
Cited
US2727678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |