US2558900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic printing method and apparatus
Assignee: WILLIAM C HUEBNER
•
Filing: 1945-03-26
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Granted: 1951-07-03
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Expires: 1965-03-26
Abstract
No abstract record available.
Inventors
- 👤 William J Hooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:39
CPC Classifications
B; B41; B41M; B41M1/00; B41M1/42; B41F; B41F17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1788600A
Cited
US1820194A
Cited
US2191827A
Cited
US2221776A
Cited
US2224391A
Cited
US2408144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |