US2630604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall or ceiling panel
Assignee: Individual
•
Filing: 1950-08-11
•
Granted: 1953-03-10
•
Expires: 1970-08-11
Abstract
No abstract record available.
Inventors
- 👤 Sr Alvin C Marsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:45
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1374580A
Cited
US2266746A
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US2283582A
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US2256836A
Cited
US2341645A
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US2342682A
Cited
US2295248A
Cited
US2426802A
Cited
US2453326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |