US2417094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of heat-treating glass or like materials
Assignee: Individual
•
Filing: 1940-04-01
•
Granted: 1947-03-11
•
Expires: 1960-04-01
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Spinasse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:17
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/068; C; C03; C03B; C03B27/00; C03B27/04; C03B27/0417; C03B27/052; C03B27/06; C03B27/067; Y; Y10; Y10S; Y10S65/00; Y10S65/04
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) | 1950-03-10 | 1950-09-09 | 1951-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-10 | 1954-09-09 | 1955-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-10 | 1958-09-09 | 1959-03-11 | $7700.00 | Window Closed / Lapsed |