US3529074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
External busbar system
Assignee: Sierracin Corp
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Filing: 1968-05-07
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Granted: 1970-09-15
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Expires: 1988-05-07
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:50
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/84; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10174; B32B17/10293; B32B17/1055; B32B17/10761; B32B2367/00; B60; B60J; B60J1/00; B60J1/02; H05B3/02; H05B3/06; H05B2203/00; H05B2203/016; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49083
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) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |