US2615329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper stock analyzer
Assignee: Bristol Co
•
Filing: 1946-07-16
•
Granted: 1952-10-28
•
Expires: 1966-07-16
Abstract
No abstract record available.
Inventors
- 👤 George S Witham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:51
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/34; G01N33/343; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1939
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |