Patent US1638078A successfully refreshed from Google Patents.
US2097144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of buttons and like articles
Assignee: Individual
•
Filing: 1932-07-16
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Granted: 1937-10-26
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Expires: 1952-07-16
Abstract
No abstract record available.
Inventors
- 👤 Peter C Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:40
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/26; C08K3/20; C08K3/22; C08K2003/2206; Y; Y10; Y10S; Y10S264/00; Y10S264/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-10-25 | 1941-04-26 | 1941-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-10-25 | 1945-04-26 | 1945-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-10-25 | 1949-04-26 | 1949-10-26 | $7700.00 | Window Closed / Lapsed |