Patent US1581487A successfully refreshed from Google Patents.
US1581487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame construction for buildings, etc.
Assignee: Individual
•
Filing: 1919-09-25
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Granted: 1926-04-20
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Expires: 1939-09-25
Abstract
No abstract record available.
Inventors
- 👤 Gustavus A E Kohler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:49
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/24; E04B1/2403; E04B2001/2406; E04B2001/2451; E04B2001/2463
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-04-19 | 1929-10-19 | 1930-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-04-19 | 1933-10-19 | 1934-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-04-19 | 1937-10-19 | 1938-04-20 | $7700.00 | Window Closed / Lapsed |