US3475189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filler material for acetylene cylinders
Assignee: Coyne Cylinder Co
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Filing: 1966-12-08
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Granted: 1969-10-28
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Expires: 1986-12-08
Abstract
No abstract record available.
Inventors
- 👤 James L Carter
- 👤 John E Hofmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:04
CPC Classifications
C; C10; C10L; C10L3/00; C10L3/02; C10L3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |