US3485145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming gusseted tubing
Assignee: PPG Architectural Coatings Canada Inc
•
Filing: 1968-03-18
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Granted: 1969-12-23
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Expires: 1988-03-18
Abstract
No abstract record available.
Inventors
- 👤 Elwyn David Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:14
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/26; B31B70/262; B31B70/266; B31B2160/00; B31B2160/10; B31B70/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3059548A
Cited
US3185044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |