US2486811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic bodies
Assignee: Monsanto Chemicals Ltd
•
Filing: 1941-01-27
•
Granted: 1949-11-01
•
Expires: 1961-01-27
Abstract
No abstract record available.
Inventors
- 👤 Woldemar A Weyl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:40
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1315; C03; C03C; C03C3/00; C03C3/12; C03C3/16; C03C3/17; C03C3/19; H; H01; H01B; H01B3/00; H01B3/02
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) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |