US2702902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for attaching objects to concrete and the like
Assignee: POWDER POWER TOOL CORP
•
Filing: 1952-01-02
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Granted: 1955-03-01
•
Expires: 1972-01-02
Abstract
No abstract record available.
Inventors
- 👤 Robert C Portouw
- 👤 Farnsworth Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:42
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/08; B25C1/10; B25C1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2395354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |