US1388248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sealing vacuum-jackets
Assignee: Individual
•
Filing: 1918-09-18
•
Granted: 1921-08-23
•
Expires: 1938-09-18
Abstract
No abstract record available.
Inventors
- 👤 Daisy L Fate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:59
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/02; H01J17/18; Y; Y10; Y10S; Y10S29/00; Y10S29/044; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879
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) | 1924-08-22 | 1925-02-21 | 1925-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-08-22 | 1929-02-21 | 1929-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-08-22 | 1933-02-21 | 1933-08-23 | $7700.00 | Window Closed / Lapsed |