US2716482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bull-blocks
Assignee: LEWIN MATHES Co
•
Filing: 1952-01-14
•
Granted: 1955-08-30
•
Expires: 1972-01-14
Abstract
No abstract record available.
Inventors
- 👤 Edward F Schweich
- 👤 Sanford A Silverstein
- 👤 Joseph W Goldenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:24
CPC Classifications
B; B21; B21C; B21C1/00; B21C1/02; Y; Y10; Y10S; Y10S72/00; Y10S72/701
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US282203A
Cited
US547231A
Cited
US604769A
Cited
US743136A
Cited
US880178A
Cited
US904836A
Cited
US1067235A
Cited
US1578351A
Cited
US1862267A
Cited
US2420050A
Cited
US2584099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-29 | 1959-02-28 | 1959-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-29 | 1963-02-28 | 1963-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-29 | 1967-02-28 | 1967-08-30 | $7700.00 | Window Closed / Lapsed |