Patent US3420925A successfully refreshed from Google Patents.
US3420925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating a panel
Assignee: AHMED N SHARIF
•
Filing: 1966-06-21
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Granted: 1969-01-07
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Expires: 1986-06-21
Abstract
No abstract record available.
Inventors
- 👤 Ahmed N Sharif
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:12
CPC Classifications
B; B44; B44C; B44C3/00; B44C3/04; B44C3/046; B44C1/00; B44C1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB801182A
Cited
US3312761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |