Patent US2568750A successfully refreshed from Google Patents.
Patent US3505160A successfully refreshed from Google Patents.
US3505160A
Expired / Lapsed
US
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Laminated safety glass
Assignee: PPG Industries Inc
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Filing: 1965-10-18
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Granted: 1970-04-07
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Expires: 1985-10-18
Abstract
No abstract record available.
Inventors
- 👤 George E Michaels
- 👤 Raymond G Rieser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:45
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/10082; B32B17/10091; B32B17/10165; B32B17/10293; B32B17/1055; B32B17/10688; B32B17/10761; B32B17/10807; B32B17/10981; B32B27/00; B32B27/06; B32B27/08; B32B7/00; B32B7/04; B32B7/12; B32B2250/00; B32B2250/03; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/24793; Y10T428/26; Y10T428/266; Y10T428/31; Y10T428/315; Y10T428/31504; Y10T428/3154; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31645
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2526728A
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US2697675A
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US2725320A
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US3160925A
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US3282722A
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US3231461A
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US3317710A
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US3382137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-06 | 1973-10-06 | 1974-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-06 | 1977-10-06 | 1978-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-06 | 1981-10-06 | 1982-04-07 | $7700.00 | Window Closed / Lapsed |