US2543716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Block laying guide
Assignee: Individual
•
Filing: 1948-03-29
•
Granted: 1951-02-27
•
Expires: 1968-03-29
Abstract
No abstract record available.
Inventors
- 👤 John A Carini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:43
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/14; E04G21/16; E04G21/18; E04G21/1841; E04G21/1883
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US391496A
Cited
US715946A
Cited
US814926A
Cited
US915982A
Cited
US1210339A
Cited
US1764836A
Cited
US1742103A
Cited
DE522599C
Cited
US2438613A
Cited
US2466919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |