US2794940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple k dielectric
Assignee: Globe Union Inc
•
Filing: 1952-12-26
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Granted: 1957-06-04
•
Expires: 1972-12-26
Abstract
No abstract record available.
Inventors
- 👤 Rolland R Roup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:07
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB462639A
Cited
US2192494A
Cited
US2266813A
Cited
US2327372A
Cited
US2399313A
Cited
US2534653A
Cited
US2549424A
Cited
US2566666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |