US2948019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for casting buttons and the like
Assignee: JOHN L BURNS
•
Filing: 1955-03-14
•
Granted: 1960-08-09
•
Expires: 1975-03-14
Abstract
No abstract record available.
Inventors
- 👤 Richard O A Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:00
CPC Classifications
B; B29; B29D; B29D19/00; B29C; B29C39/00; Y; Y10; Y10S; Y10S264/00; Y10S264/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2732584A
Cited
US356450A
Cited
US1308753A
Cited
US294490A
Cited
GB190400564A
Cited
US1673904A
Cited
US1958422A
Cited
US2097144A
Cited
US2022895A
Cited
US2257068A
Cited
US2387034A
Cited
US2552027A
Cited
US2564624A
Cited
US2652597A
Cited
US2665452A
Cited
US2696024A
Cited
US2827665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |