US2999338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass bending mould
Assignee: PPG Industries Inc
•
Filing: 1957-01-29
•
Granted: 1961-09-12
•
Expires: 1977-01-29
Abstract
No abstract record available.
Inventors
- 👤 Ronald E Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:08
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/025; C03B23/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US648746A
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US833436A
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US1787460A
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US2111392A
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US2176999A
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US2348279A
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US2500278A
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US2442242A
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GB660824A
Cited
US2646647A
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US2702445A
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US2663974A
Cited
FR1089973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |