Patent US2660757A successfully refreshed from Google Patents.
US2660757A
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Method and apparatus for producing textured films
Assignee: Individual
•
Filing: 1950-11-02
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Granted: 1953-12-01
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Expires: 1970-11-02
Abstract
No abstract record available.
Inventors
- 👤 Leland H Smith
- 👤 Frank M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:34
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C59/06; B29C51/00; B29C51/18; B29C51/20; B29C51/22; B29C51/225; Y; Y10; Y10S; Y10S264/00; Y10S264/78; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |