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US3047299A
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Gland seals for gas-filled electric machines
Assignee: ABB Norden Holding AB
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Filing: 1959-12-08
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Granted: 1962-07-31
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Expires: 1979-12-08
Abstract
No abstract record available.
Inventors
- 👤 Karsten Olav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:51
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/124; F; F16; F16J; F16J15/00; F16J15/16; F16J15/40; F16J15/44; F16J15/441; Y; Y10; Y10S; Y10S277/00; Y10S277/927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1689874A
Cited
FR1109866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |