US2222781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental investment material
Assignee: Ransom and Randolph Co
•
Filing: 1937-03-29
•
Granted: 1940-11-26
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Expires: 1957-03-29
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:13
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/14; A; A61; A61K; A61K6/00; A61K6/80; A61K6/849; A61K6/858; F; F15; F15B; F15B21/00; F15B21/08; C04B2111/00; C04B2111/00474; C04B2111/00836; C04B2111/00939
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-11-26 | 1944-05-27 | 1944-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-26 | 1948-05-27 | 1948-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-26 | 1952-05-27 | 1952-11-26 | $7700.00 | Window Closed / Lapsed |