US3384696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for providing a perforated ultramicrocellular sheet
Assignee: EIDP Inc
•
Filing: 1965-01-27
•
Granted: 1968-05-21
•
Expires: 1985-01-27
Abstract
No abstract record available.
Inventors
- 👤 Makansi Munzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:38
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/24; B26F3/00; B26F3/06; B26F3/08; Y; Y10; Y10S; Y10S521/00; Y10S521/91; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2597726A
Cited
US3123656A
Cited
US1862633A
Cited
US2722719A
Cited
GB890506A
Cited
US3073304A
Cited
US3187380A
Cited
US3227784A
Cited
US3301935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |