US3524920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker for conductive-coated glass
Assignee: ANGLASS IND Inc
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Filing: 1968-02-16
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Granted: 1970-08-18
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Expires: 1988-02-16
Abstract
No abstract record available.
Inventors
- 👤 Michael E Stromquist
- 👤 James J Heaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:31
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/84; H01; H01B; H01B1/00; H05B3/02; H05B3/06
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) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |