US3470347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for shielding a gas effluent
Assignee: Union Carbide Corp
•
Filing: 1968-01-16
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Granted: 1969-09-30
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Expires: 1988-01-16
Abstract
No abstract record available.
Inventors
- 👤 John E Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:44
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291; B05; B05B; B05B7/00; B05B7/16; B05B7/22; B05B7/222; B05B7/226; C; C23; C23C; C23C4/00; C23C4/12; C23C4/134; H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; H05H1/32; H05H1/34; H05H1/341; H05H1/3478
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3016447A
Cited
US3075066A
Cited
US3246114A
Cited
US3071678A
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US3312566A
Cited
US3358114A
Cited
US3387110A
Cited
US3313908A
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 |