Patent CA1167727A successfully refreshed from Google Patents.
US3016506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductive element
Assignee: Specialties Development Corp
•
Filing: 1960-02-01
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Granted: 1962-01-09
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Expires: 1980-02-01
Abstract
No abstract record available.
Inventors
- 👤 Rakowski Alexander Joseph
- 👤 Rollins James Edgar
- 👤 Jr John Conrad Zenobia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:08
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/02; H01C; H01C7/00; H01C7/04; H01C7/042; H01C7/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2407288A
Cited
US2329511A
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US2414793A
Cited
US2720573A
Cited
US2871197A
Cited
US2936434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |