US3462293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated expandable polystyrene
Assignee: Atlantic Richfield Co
•
Filing: 1966-11-07
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Granted: 1969-08-19
•
Expires: 1986-11-07
Abstract
No abstract record available.
Inventors
- 👤 William H Voris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:58
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/22; C08J9/224; B; B01; B01J; B01J8/00; B01J8/008; C08J2325/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB482836A
Cited
US3154604A
Cited
US3208965A
Cited
US3185588A
Cited
US3255036A
Cited
GB1025694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |