US2498403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of facing frame structures
Assignee: Individual
•
Filing: 1946-04-19
•
Granted: 1950-02-21
•
Expires: 1966-04-19
Abstract
No abstract record available.
Inventors
- 👤 Elmendorf Armin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:54
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56; E04B2/70; E04B2/706; E04B2/707
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US954041A
Cited
US1819775A
Cited
US1902032A
Cited
US2107240A
Cited
US2068098A
Cited
US2268477A
Cited
US2295248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |