US2699770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoscope
Assignee: Centre National de la Recherche Scientifique
•
Filing: 1952-05-09
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Granted: 1955-01-18
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Expires: 1972-05-09
Abstract
No abstract record available.
Inventors
- 👤 Fourestier Max
- 👤 Gladu Amedee Joseph
- 👤 Vulmiere Jacques Claude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:34
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/267; A61B1/04; A61B1/06; A61B1/0661; A61B1/0669; A61B1/12; Y; Y10; Y10S; Y10S385/00; Y10S385/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR525978A
Cited
US1551770A
Cited
US1640096A
Cited
US1677016A
Cited
DE483158C
Cited
DE709732C
Cited
US2186143A
Cited
US2235979A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |