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Patent US3469503A successfully refreshed from Google Patents.
US3469503A
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US
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Double stroke cylinder
Assignee: Corning Glass Works
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Filing: 1967-10-16
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Granted: 1969-09-30
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Expires: 1987-10-16
Abstract
No abstract record available.
Inventors
- 👤 Meryle D W Adler
- 👤 Joseph Halderman Jr
- 👤 Lawrence A Pauls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:51
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/122; F16K31/1225; F15; F15B; F15B11/00; F15B11/08; F15B11/12; F15B11/121; F15B11/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR999277A
Cited
US2510314A
Cited
US2649842A
Cited
GB888036A
Cited
GB911709A
Cited
US3158070A
Cited
US3150563A
Cited
US3208354A
Cited
US3312146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |