US2682222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shot shell sealing
Assignee: PPG Architectural Coatings Canada Inc
•
Filing: 1951-01-26
•
Granted: 1954-06-29
•
Expires: 1971-01-26
Abstract
No abstract record available.
Inventors
- 👤 Richardson William George
- 👤 Macallister Arthur Earl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:32
CPC Classifications
F; F42; F42B; F42B7/00; F42B7/02; F42B7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1397756A
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US1504088A
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CH106575A
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US1646083A
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GB476326A
Cited
US2232634A
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US2242907A
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US2336065A
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US2300367A
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US2300368A
Cited
US2387665A
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US2591286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |