US2559756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preformed sign unit
Assignee: By-Buk Co
•
Filing: 1948-01-15
•
Granted: 1951-07-10
•
Expires: 1968-01-15
Abstract
No abstract record available.
Inventors
- 👤 Homer G Buck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:06
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1396409A
Cited
US1932658A
Cited
US2020717A
Cited
US2403752A
Cited
US2422256A
Cited
US2394701A
Cited
US2375177A
Cited
US2426462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |