Patent US3407556A successfully refreshed from Google Patents.
US3407556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak resistant roof covering and multitab shingle therefor
Assignee: PHILIP CAREY CORP
•
Filing: 1966-07-26
•
Granted: 1968-10-29
•
Expires: 1986-07-26
Abstract
No abstract record available.
Inventors
- 👤 Walton V Leibrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:03
CPC Classifications
E; E04; E04D; E04D1/00; E04D1/26; 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)
US1870414A
Cited
US1958560A
Cited
US1937933A
Cited
US2149741A
Cited
US2174098A
Cited
US2171010A
Cited
US2199760A
Cited
US2340039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |