US2597949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buoyancy scale
Assignee: WRIGHT MACHINERY CO
•
Filing: 1949-07-07
•
Granted: 1952-05-27
•
Expires: 1969-07-07
Abstract
No abstract record available.
Inventors
- 👤 Rappaport Sigmund
- 👤 James C Petrea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:26
CPC Classifications
G; G01; G01G; G01G5/00; G01G5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US232245A
Cited
US403452A
Cited
US1344663A
Cited
US1425466A
Cited
US2300282A
Cited
US2462216A
Cited
US2487664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |