USRE27747E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural articles and method of making
Assignee: —
•
Filing: 1971-05-17
•
Granted: 1973-09-11
•
Expires: 1991-05-17
Abstract
Abstract CERAMIC ARTICLES OF GENERALLY HONEYCOMB STRUCTURE ESSENTIALLY FREE OF ANY DEMARCATION LINE AT NODES ARE PROVIDED TOGETHER WITH PROCESSES FOR FORMING SUCH ARTICLES BY FIRING GREEN STRUCTURES HAVING TEMPORARY BONDS AT NODES WHERE SHEETS ARE IN CONTACT.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:59
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/28; B; B22; B22F; B22F3/00; B22F3/10; B22F3/11; B22F3/1103; B22F3/1115; B22F7/00; C04B33/30; C04B35/00; C04B35/515; C04B35/56; C04B35/565; C04B35/573; C04B38/00; C04B38/008; C04B38/0083; F; F01; F01D; F01D25/00; F01D25/005; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2803; F01N3/2825; F01N3/2828; F28; F28F; F28F21/00; F28F21/02; F28F21/04; G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/42; G21C3/58; G21C3/62; F01N2330/00; F01N2330/06; F01N2330/14; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02T; Y02T50/00; Y02T50/60; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/356; Y10S165/387; Y10S165/389; Y10S376/00; Y10S376/90; Y10S376/901; Y10S376/903; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 0
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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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |