Patent US3529988A successfully refreshed from Google Patents.
US3529988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making hyperstoichiometric carbide compositions
Assignee: Teeg Research Inc
•
Filing: 1966-09-23
•
Granted: 1970-09-22
•
Expires: 1986-09-23
Abstract
No abstract record available.
Inventors
- 👤 Paul F Woerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:59
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/56; C04B35/5607; C01; C01B; C01B32/00; C01B32/90; C01B32/907; C04B35/5611; C04B35/5622; C04B35/5626; C04B41/00; C04B41/45; C04B41/50; C04B41/5053; C04B41/5057; C23; C23C; C23C16/00; C23C16/01; C23C16/22; C23C16/30; C23C16/32; C23C24/00; C01P; C01P2004/00; C01P2004/80
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |