US2762252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One-piece collapsible sheet metal bolt anchor
Assignee: Diamond Expansion Bolt Co Inc
•
Filing: 1955-04-27
•
Granted: 1956-09-11
•
Expires: 1975-04-27
Abstract
No abstract record available.
Inventors
- 👤 Karitzky John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:25
CPC Classifications
F; F16; F16B; F16B29/00; F16B13/00; F16B13/04; F16B13/06; F16B13/061; F16B37/00; F16B37/04; F16B37/041; F16B37/043
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1084458A
Cited
US1111660A
Cited
GB152854A
Cited
US2090640A
Cited
US2017421A
Cited
US2018251A
Cited
US2320785A
Cited
GB608218A
Cited
US2538601A
Cited
US2396501A
Cited
US2559281A
Cited
DE832221C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |