US3058172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting structure for ceilings of buildings
Assignee: Individual
•
Filing: 1959-01-06
•
Granted: 1962-10-16
•
Expires: 1979-01-06
Abstract
No abstract record available.
Inventors
- 👤 George T Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:12
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/22; E04B9/24; E04B9/26; E04B9/06; E04B9/12; E04B9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2242834A
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US2059483A
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US2071865A
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US2014749A
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US2221001A
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US2219440A
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US2309695A
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US2447694A
Cited
US2486563A
Cited
US2800308A
Cited
US2785099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |