US3216880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary slit sealer
Assignee: Millennium Petrochemicals Inc
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Filing: 1962-10-08
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Granted: 1965-11-09
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Expires: 1982-10-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Fox J Herrington
- 👤 Roy B Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:51
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/74; B29C65/743; B29C65/7439; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/745; B29C65/7459; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/137; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/432; B29C66/4322; B29C66/80; B29C66/83; B29C66/836; B29C66/70; B29C66/71; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1084; Y10T156/1087; Y10T156/12; Y10T156/1313
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |