US3447273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruded roof joint cover
Assignee: WENZEL W THOM
•
Filing: 1967-04-10
•
Granted: 1969-06-03
•
Expires: 1987-04-10
Abstract
No abstract record available.
Inventors
- 👤 Wenzel W Thom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:09
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/15; E04D13/151; E04D13/14; E04D13/1407; E04D13/1415
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2160758A
Cited
US2857861A
Cited
US3270474A
Cited
US3365847A
Cited
US3363390A
Cited
US3375621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |