US2864452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting and level control mechanism for concrete slab laying machines
Assignee: Guntert and Zimmerman Construction Div Inc
•
Filing: 1956-11-05
•
Granted: 1958-12-16
•
Expires: 1976-11-05
Abstract
No abstract record available.
Inventors
- 👤 Ronald M Guntert
- 👤 Wilbur F Earley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:32
CPC Classifications
B; B62; B62D; B62D1/00; B62D1/24; B62D1/26; B62D11/00; B62D11/02; B62D11/06; B62D11/10; B62D11/14; B62D55/00; B62D55/08; B62D55/104; B62D55/116; E; E01; E01C; E01C19/00; E01C19/004; E01C19/008; E01C19/48; E01C19/4866; E01C19/4873
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1255599A
Cited
US1407969A
Cited
US1348333A
Cited
US1609783A
Cited
US1863504A
Cited
US1914692A
Cited
US2101837A
Cited
US2385480A
Cited
US2693162A
Cited
US2683780A
Cited
US2766345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |