Patent US2873739A successfully refreshed from Google Patents.
US2873739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colonic device
Assignee: Individual
•
Filing: 1952-11-15
•
Granted: 1959-02-17
•
Expires: 1972-11-15
Abstract
No abstract record available.
Inventors
- 👤 Myra D Whann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:55
CPC Classifications
A; A61; A61M; A61M3/00; A61M3/02; A61M3/0233; A61M3/0241; A61M3/0204; A61M3/0208; A61M3/0212; A61M3/0216; A61M3/022; A61M2205/00; A61M2205/33; A61M2205/3331; A61M2205/3344
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1243840A
Cited
US2024967A
Cited
US2050407A
Cited
US2420586A
Cited
US2486405A
Cited
US2478876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |