US2610893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas and liquid contact pad
Assignee: Owens Corning
•
Filing: 1949-01-11
•
Granted: 1952-09-16
•
Expires: 1969-01-11
Abstract
No abstract record available.
Inventors
- 👤 Howard W Collins
- 👤 Thomas E Philipps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:52
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/04; F28; F28C; F28C3/00; F28C3/06; F28C3/08; Y; Y10; Y10S; Y10S65/00; Y10S65/03; Y10T; Y10T442/00; Y10T442/60; Y10T442/699
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USRE22402E
Cited
US1881932A
Cited
US2178614A
Cited
US2021437A
Cited
US2271829A
Cited
GB613446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |