Patent US2667131A successfully refreshed from Google Patents.
US2667131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sealing shingle
Assignee: Johns Manville Corp
•
Filing: 1948-10-28
•
Granted: 1954-01-26
•
Expires: 1968-10-28
Abstract
No abstract record available.
Inventors
- 👤 George W Clarvoe
- 👤 Edith A Pomeroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:40
CPC Classifications
E; E04; E04D; E04D1/00; E04D1/26; E04D1/29; E04D1/2907; E04D1/2914; E04D1/2918; E04D2001/005
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1848076A
Cited
US2228463A
Cited
US2210209A
Cited
US2300488A
Cited
US2395668A
Cited
US2390697A
Cited
US2418135A
Cited
US2421892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |