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US2460181A
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Sealing material
Assignee: PPG Industries Inc
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Filing: 1944-06-17
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Granted: 1949-01-25
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Expires: 1964-06-17
Abstract
No abstract record available.
Inventors
- 👤 Wallace P Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:39
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; C; C09; C09J; C09J7/00; C09J7/10; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249923; Y10T428/28; Y10T428/2848; Y10T428/2852; Y10T428/2857
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2144067A
Cited
US2036009A
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US2119280A
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US2195362A
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US2208619A
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US2280242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-25 | 1952-07-26 | 1953-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-25 | 1956-07-26 | 1957-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-25 | 1960-07-26 | 1961-01-25 | $7700.00 | Window Closed / Lapsed |