US2479819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall and panel construction
Assignee: Individual
•
Filing: 1946-02-06
•
Granted: 1949-08-23
•
Expires: 1966-02-06
Abstract
No abstract record available.
Inventors
- 👤 Ragon Paul O De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:01
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56; E04B2/58; E04B2/60; E04B2/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US930611A
Cited
US1622962A
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US1764001A
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US1895667A
Cited
US1978494A
Cited
US2208589A
Cited
US2234797A
Cited
US2270846A
Cited
US2311170A
Cited
US2372200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |