US3436307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite green structures for nuclear fuel element
Assignee: 3M Co
•
Filing: 1966-09-22
•
Granted: 1969-04-01
•
Expires: 1986-09-22
Abstract
No abstract record available.
Inventors
- 👤 James R Johnson
- 👤 Harold G Sowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:39
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C21/00; G21C21/02; G21C21/10; G21C3/30; G21C3/36; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12833; Y10T428/1284
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) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |