Patent US3713511A successfully refreshed from Google Patents.
US2772718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for making reinforced sheet material
Assignee: Individual
•
Filing: 1952-11-06
•
Granted: 1956-12-04
•
Expires: 1972-11-06
Abstract
No abstract record available.
Inventors
- 👤 Elton E Magnuson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:59
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/68; B29C70/685; B29C70/687; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/10; B29K2105/101; B29K2105/108; B29K2995/00; B29K2995/0018; B29K2995/0026; B29L; B29L2031/00; B29L2031/778; B29L2031/7782
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1494970A
Cited
US1460949A
Cited
US1951301A
Cited
US2203822A
Cited
US2332373A
Cited
US2522527A
Cited
US2490451A
Cited
US2575666A
Cited
US2610936A
Cited
US2614054A
Cited
US2704108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |