US2608276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building construction
Assignee: Detroit Steel Products Co Inc
•
Filing: 1945-07-02
•
Granted: 1952-08-26
•
Expires: 1965-07-02
Abstract
No abstract record available.
Inventors
- 👤 Clyde W Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:11
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/56; E06B1/60; E06B1/6015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1193975A
Cited
US1085605A
Cited
US1631224A
Cited
US1723281A
Cited
US1996722A
Cited
US2014464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |