US2111634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building structure and joint therefor
Assignee: FERROCON Corp
•
Filing: 1935-10-01
•
Granted: 1938-03-22
•
Expires: 1955-10-01
Abstract
No abstract record available.
Inventors
- 👤 Guy F Ktrbaty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:53
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/84; E04B2/842; E04B2/845; E04B2/56; E04B2/58; E04B2/60; E04B2/62; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6145; E04B1/6158; E04B2/72; E04B2/723; E04C; E04C3/00; E04C3/02; E04C3/04; E04C2003/0486; E04C2003/0491
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1941-03-21 | 1941-09-20 | 1942-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-03-21 | 1945-09-20 | 1946-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-03-21 | 1949-09-20 | 1950-03-22 | $7700.00 | Window Closed / Lapsed |