US2882558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspension of ceiling tile
Assignee: Individual
•
Filing: 1954-05-18
•
Granted: 1959-04-21
•
Expires: 1974-05-18
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Jacobson
- 👤 Stanley E Sorenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:53
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/22; E04B9/28; E04B9/06; E04B9/12; E04B9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1891512A
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US1984028A
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US2143980A
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US2281109A
Cited
GB544663A
Cited
US2667667A
Cited
US2662746A
Cited
US2710175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |