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Patent US3049579A successfully refreshed from Google Patents.
US3049579A
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US
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Ballast canister construction
Assignee: Advance Transformer Co
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Filing: 1960-03-08
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Granted: 1962-08-14
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Expires: 1980-03-08
Abstract
No abstract record available.
Inventors
- 👤 Robert I Sulzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:05
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/08; H01F38/10; Y; Y10; Y10S; Y10S174/00; Y10S174/02
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) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |