US2722720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making buttons with variegated effect
Assignee: Individual
•
Filing: 1951-01-02
•
Granted: 1955-11-08
•
Expires: 1971-01-02
Abstract
No abstract record available.
Inventors
- 👤 Karniol Leopold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:00
CPC Classifications
B; B29; B29D; B29D19/00; B29C; B29C43/00; Y; Y10; Y10S; Y10S264/00; Y10S264/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US309045A
Cited
US1301069A
Cited
US1920120A
Cited
US2101540A
Cited
US2208494A
Cited
US2434477A
Cited
US2571193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |