US3409852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnet coil construction
Assignee: Siemens AG
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Filing: 1966-04-12
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Granted: 1968-11-05
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Expires: 1986-04-12
Abstract
No abstract record available.
Inventors
- 👤 Uhlmann Helmut
- 👤 Adam Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:26
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/08; G21K1/093; H; H01; H01F; H01F7/00; H01F7/06; H01F7/20; H01F7/202; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/72; H01J29/76; H01J29/762; H02; H02K; H02K44/00; H02K44/08; H02K44/16; H05; H05H; H05H7/00; H05H7/04; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/879
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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |