US2497066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making condensers
Assignee: Individual
•
Filing: 1944-04-14
•
Granted: 1950-02-14
•
Expires: 1964-04-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:14
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1706816A
Cited
US2174840A
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US1751213A
Cited
US1895376A
Cited
US1934192A
Cited
US1947112A
Cited
US1966163A
Cited
US2166180A
Cited
US2346658A
Cited
US2293951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |