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US2215293A
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US
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Assignee: Individual
•
Filing: 1939-06-16
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Granted: 1940-09-17
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Expires: 1959-06-16
Abstract
No abstract record available.
Inventors
- 👤 Law Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:07
CPC Classifications
E; E05; E05C; E05C9/00; E05C9/04; E05C9/042; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/084; Y10T292/0844; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T292/1086
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) | 1943-09-17 | 1944-03-18 | 1944-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-09-17 | 1948-03-18 | 1948-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-09-17 | 1952-03-18 | 1952-09-17 | $7700.00 | Window Closed / Lapsed |