US2499397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for forming thin annular plastic articles
Assignee: Individual
•
Filing: 1945-07-07
•
Granted: 1950-03-07
•
Expires: 1965-07-07
Abstract
No abstract record available.
Inventors
- 👤 Lyon George Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:00
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/32; B29C43/36; B29C31/00; B29C31/04; B29C31/042; B29C31/047; B29C33/00; B29C33/10; B29C43/34; B29C48/00; B29C48/25; B29C48/266; B29D; B29D17/00; B29D17/005; B29C2043/3433; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |