US3439110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated stress control shield
Assignee: G&W Electric Specialty Co
•
Filing: 1968-06-04
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Granted: 1969-04-15
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Expires: 1988-06-04
Abstract
No abstract record available.
Inventors
- 👤 George E Lusk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:53
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/013; H02G15/02; H02G15/06; H02G15/064; H02G15/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |