US2787031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window
Assignee: Individual
•
Filing: 1953-07-03
•
Granted: 1957-04-02
•
Expires: 1973-07-03
Abstract
No abstract record available.
Inventors
- 👤 Harry R Ansel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:51
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/18; E06B3/00; E06B3/32; E06B3/34; E06B3/40; E06B9/00; E06B9/24; E06B9/26; E06B9/264
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US306631A
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US809609A
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US846858A
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US1538888A
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US1991832A
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US2174441A
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US2272722A
Cited
US2607963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |