Patent US3127577A successfully refreshed from Google Patents.
Patent US2225667A successfully refreshed from Google Patents.
US2225667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for drawing glass fibers
Assignee: Owens Corning
•
Filing: 1936-05-28
•
Granted: 1940-12-24
•
Expires: 1956-05-28
Abstract
No abstract record available.
Inventors
- 👤 Carl G Staelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:49
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/08; C03B37/01; C03B37/02; C03B37/0203; C03B37/0213; C03B37/09; C03B37/092; C03B2205/00; C03B2205/02
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) | 1943-12-24 | 1944-06-24 | 1944-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-24 | 1948-06-24 | 1948-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-24 | 1952-06-24 | 1952-12-24 | $7700.00 | Window Closed / Lapsed |