US2430904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifying installation comprising blocking-layer cells
Assignee: Hartford National Bank and Trust Co
•
Filing: 1943-01-11
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Granted: 1947-11-18
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Expires: 1963-01-11
Abstract
No abstract record available.
Inventors
- 👤 Boldingh Willem Hondius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:39
CPC Classifications
A; A01; A01M; A01M7/00; A01M7/0089; A01M7/0092; G; G05; G05D; G05D11/00; H; H01; H01H; H01H3/00; H01H3/02; H01H3/08; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/06; H02M7/10; H02M7/103; H02M7/106; H10; H10W; H10W40/00; H10W40/30; H10W90/00; Y; Y10; Y10S; Y10S257/00; Y10S257/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1768865A
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US1842716A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-17 | 1951-05-19 | 1951-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-17 | 1955-05-19 | 1955-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-17 | 1959-05-19 | 1959-11-18 | $7700.00 | Window Closed / Lapsed |