US2240274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article and process and apparatus for producing the same
Assignee: Sylvania Industrial Corp
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Filing: 1936-08-07
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Granted: 1941-04-29
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Expires: 1956-08-07
Abstract
No abstract record available.
Inventors
- 👤 Wade Worth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:36
CPC Classifications
D; D06; D06J; D06J1/00; D06J1/02; D06J1/04; Y; Y10; Y10S; Y10S264/00; Y10S264/73; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/1016; Y10T156/102; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24628; Y10T428/24653; Y10T428/24752; Y10T428/2476
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) | 1944-04-28 | 1944-10-28 | 1945-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-04-28 | 1948-10-28 | 1949-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-04-28 | 1952-10-28 | 1953-04-29 | $7700.00 | Window Closed / Lapsed |