Patent US2133236A successfully refreshed from Google Patents.
US2133236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass wool and method and apparatus for making same
Assignee: OI Glass Inc
•
Filing: 1933-12-26
•
Granted: 1938-10-11
•
Expires: 1953-12-26
Abstract
No abstract record available.
Inventors
- 👤 Slayter Games
- 👤 John H Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:27
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/04; C; C03; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/022; C03B37/06; C03B37/08; C03B37/09; C03B37/091; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1941-10-10 | 1942-04-11 | 1942-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-10 | 1946-04-11 | 1946-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-10 | 1950-04-11 | 1950-10-11 | $7700.00 | Window Closed / Lapsed |