US3532587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press plate
Assignee: Esso Research & Chem Co
•
Filing: 1966-08-04
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Granted: 1970-10-06
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Expires: 1986-08-04
Abstract
No abstract record available.
Inventors
- 👤 Israel S Ungar
- 👤 Herbert I Scher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:13
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/06; B30B15/062; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/936; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T156/1039; Y10T428/00; Y10T428/12; Y10T428/12389; Y10T428/12451; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12562; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12847; Y10T428/12854; Y10T428/12861; Y10T428/12903; Y10T428/1291; Y10T428/12986; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24545; Y10T428/26; Y10T428/266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |