US2764235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windows
Assignee: Individual
•
Filing: 1951-02-07
•
Granted: 1956-09-25
•
Expires: 1971-02-07
Abstract
No abstract record available.
Inventors
- 👤 Henry N Renton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:41
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/44; E06B2003/4438; E06B2003/4453; E06B2003/4492
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US908858A
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US2219593A
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US2421309A
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US2611156A
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US2600283A
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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) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |