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US2028670A
Expired / Lapsed
US
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Reenforced light-transmitting sheet
Assignee: Individual
•
Filing: 1933-12-11
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Granted: 1936-01-21
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Expires: 1953-12-11
Abstract
No abstract record available.
Inventors
- 👤 Richard T Hosking
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:27
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/68; B29C70/685; B29C70/687; Y; Y10; Y10S; Y10S160/00; Y10S160/07; Y10T; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/109; Y10T442/126
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) | 1939-01-20 | 1939-07-22 | 1940-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-01-20 | 1943-07-22 | 1944-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-01-20 | 1947-07-22 | 1948-01-21 | $7700.00 | Window Closed / Lapsed |