US2507073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Letter scale
Assignee: PARVA PRODUCTS CO
•
Filing: 1946-03-21
•
Granted: 1950-05-09
•
Expires: 1966-03-21
Abstract
No abstract record available.
Inventors
- 👤 Paul W White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:23
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US193744A
Cited
US199776A
Cited
US440959A
Cited
US601224A
Cited
US798695A
Cited
US2097026A
Cited
US2335693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |