Patent US3652269A successfully refreshed from Google Patents.
Patent US3391054A successfully refreshed from Google Patents.
US3391054A
Expired / Lapsed
US
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Polyurethane based adhesive systems and laminates prepared therewith
Assignee: Wyeth Holdings LLC
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Filing: 1966-08-24
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Granted: 1968-07-02
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Expires: 1986-08-24
Abstract
No abstract record available.
Inventors
- 👤 Lewis Armand Francis
- 👤 Zaccardo Louis Michael
- 👤 Schiller Arthur Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:49
CPC Classifications
C; C09; C09J; C09J175/00; C09J175/04; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/83; C08G18/86; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/145; C08L; C08L63/00; C08L75/00; C08L75/04; C09J163/00; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/28; C08L2666/34; C08L2666/44; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31598; Y10T428/31605
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) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |