US2479504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Investment material
Assignee: Ransom and Randolph Co
•
Filing: 1943-07-12
•
Granted: 1949-08-16
•
Expires: 1963-07-12
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Moore
- 👤 Claude H Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:07
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1315
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1751482A
Cited
US2072212A
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US2102444A
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US2121969A
Cited
US2152152A
Cited
US2209035A
Cited
US2243094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |