US2707910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable window ventilator
Assignee: Individual
•
Filing: 1951-08-02
•
Granted: 1955-05-10
•
Expires: 1971-08-02
Abstract
No abstract record available.
Inventors
- 👤 Everett S Tillotson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:31
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US779046A
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US916752A
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US1173686A
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US1525781A
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US1754559A
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US2030551A
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US2014974A
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US2183955A
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US2314492A
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US2580621A
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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) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |