US1450464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal formation
Assignee: General Electric Co
•
Filing: 1920-07-26
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Granted: 1923-04-03
•
Expires: 1940-07-26
Abstract
No abstract record available.
Inventors
- 👤 Thomson Elihu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:31
CPC Classifications
F; F27; F27D; F27D11/00; F27D11/02; C; C04; C04B; C04B35/00; C04B35/01; C04B35/46
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) | 1926-04-02 | 1926-10-02 | 1927-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-04-02 | 1930-10-02 | 1931-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-04-02 | 1934-10-02 | 1935-04-03 | $7700.00 | Window Closed / Lapsed |