US2841438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stretcher having a collapsible undercarriage
Assignee: Individual
•
Filing: 1956-09-13
•
Granted: 1958-07-01
•
Expires: 1976-09-13
Abstract
No abstract record available.
Inventors
- 👤 Weil Burt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:40
CPC Classifications
B; B62; B62B; B62B5/00; B62B5/0003; A; A61; A61G; A61G1/00; A61G1/02; A61G1/0206; A61G1/0212; A61G1/0237; A61G1/025; A61G1/0262; A61G1/04; A61G1/052; A61G1/056; A61G1/0565
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191125429A
Cited
GB345843A
Cited
GB369456A
Cited
FR864489A
Cited
US2564333A
Cited
US2747919A
Cited
FR1097953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |