US2788097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure construction for buildings
Assignee: Individual
•
Filing: 1953-08-17
•
Granted: 1957-04-09
•
Expires: 1973-08-17
Abstract
No abstract record available.
Inventors
- 👤 Chester A Frick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:53
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/06; E05D15/0621; E05D15/066; E05D15/0665; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/46; E06B3/4609; E06B3/4618; E06B3/96; E06B3/9632; E06B3/964; E06B3/9641; E06B3/9647
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1569602A
Cited
US2169865A
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US2663917A
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US2607453A
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US2666508A
Cited
US2636580A
Cited
US2680269A
Cited
DE872847C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-08 | 1960-10-08 | 1961-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-08 | 1964-10-08 | 1965-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-08 | 1968-10-08 | 1969-04-09 | $7700.00 | Window Closed / Lapsed |