US2604787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic manometer
Assignee: Individual
•
Filing: 1947-03-12
•
Granted: 1952-07-29
•
Expires: 1967-03-12
Abstract
No abstract record available.
Inventors
- 👤 Coyne Andre
- 👤 Bellier Jean
- 👤 Marion Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:04
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0001; G01L9/0008; G01L9/0013; Y; Y10; Y10S; Y10S73/00; Y10S73/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US556702A
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US633471A
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US1995305A
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US2050674A
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US2306137A
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US2269760A
Cited
US2307066A
Cited
US2447817A
Cited
US2455021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |