US2459720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folded fabric gasket and method of manufacture
Assignee: Johns Manville Corp
•
Filing: 1945-03-19
•
Granted: 1949-01-18
•
Expires: 1965-03-19
Abstract
No abstract record available.
Inventors
- 👤 Emil J Poltorak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:31
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/16; F16L23/18; F16L23/22; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/944; Y10S277/945; Y10S277/946; Y10S285/00; Y10S285/909; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1051; Y10T156/1052; Y10T156/1062
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US340280A
Cited
US1194408A
Cited
US1648391A
Cited
US1622625A
Cited
US1979231A
Cited
US2001693A
Cited
US2061392A
Cited
DE644046C
Cited
US2116277A
Cited
US2217085A
Cited
US2394243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |