US3700531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for closing a film cassette made of synthetic plastics
Assignee: Agfa Gevaert AG
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Filing: 1971-01-21
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Granted: 1972-10-24
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Expires: 1991-01-21
Abstract
Abstract A synthetic plastic film cassette which consists of a cassette body covered by a U-shaped cassette cover is closed by spraying a solvent between the cover and body of the cassette. The spraying arrangement consists of several measuring cylinders and pistons, with which certain positions on the cassettes are sprayed with solvents through thin tubes.
Inventors
- 👤 Horst Schruff
- 👤 Helmut Lehmann
- 👤 Jakob Siefen
- 👤 Hermann Mathner
- 👤 Willi Adams
- 👤 Gunter Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:30
CPC Classifications
G; G03; G03C; G03C3/00; B; B29; B29C; B29C65/00; B29C65/48; B29C65/4895; B29C65/52; B29C65/54; B29C65/78; B29C65/7858; B29C65/7879; B29C65/7882; B29C66/00; B29C66/50; B29C66/51; B29C66/54; B29C66/80; B29C66/87; B29C66/874; B29C66/8746; B65; B65B; B65B51/00; B65B51/02; B65B51/023; B65B7/00; B65B7/16; B29C65/544; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1788; Y10T156/179; Y10T156/1798
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |