US3540979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminates of similarly constituted films of different crystal structure
Assignee: Phillips Petroleum Co
•
Filing: 1966-07-11
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Granted: 1970-11-17
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Expires: 1986-07-11
Abstract
No abstract record available.
Inventors
- 👤 James K Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:52
CPC Classifications
B; B32; B32B; B32B27/00; C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2719100A
Cited
US3207736A
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US3207739A
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US3246061A
Cited
US3380868A
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US3367926A
Cited
US3268499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |