US3679537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing elements for materials-interchange column
Assignee: Sulzer AG
•
Filing: 1968-08-07
•
Granted: 1972-07-25
•
Expires: 1988-08-07
Abstract
Abstract The packing elements are formed of lamella or strips which are constructed of reinforced non-self-supporting woven structure. The reinforcement is provided by wires which are disposed on opposite sides of the woven structure and spot welded together. Where the woven structure is corrugated, the transverse wires are disposed in the troughs of the corrugations. Intermediate layers of flat woven structure can be used between corrugated layers in forming the packing elements.
Inventors
- 👤 Max Huber
- 👤 Werner Meier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:28
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/32; B01D; B01D59/00; B01D59/02; B01D59/04; B01D59/28; B01D59/32; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32203; B01J2219/32206; B01J2219/3221; B01J2219/32213; B01J2219/32224; B01J2219/32227; B01J2219/324; B01J2219/32408; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1016; Y10T156/1018; Y10T428/00; Y10T428/24; Y10T428/24132; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24711; Y10T428/24802; Y10T428/24826; Y10T428/26; Y10T428/263; Y10T428/264
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |