US2940168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a packing for gas/liquid contact devices
Assignee: BOC Group Ltd
•
Filing: 1955-09-26
•
Granted: 1960-06-14
•
Expires: 1975-09-26
Abstract
No abstract record available.
Inventors
- 👤 Monroe Adam Gregory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:38
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/32; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32203; B01J2219/3221; B01J2219/32213; B01J2219/3222; B01J2219/32224; B01J2219/32227; B01J2219/324; B01J2219/32408; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB251331A
Cited
US437902A
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FR359276A
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FR596747A
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US2214672A
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GB578309A
Cited
US2615832A
Cited
US2615699A
Cited
US2594585A
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US2470652A
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GB642068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |