US1228763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-insulating unit.
Assignee: Individual
•
Filing: 1915-03-22
•
Granted: 1917-06-05
•
Expires: 1935-03-22
Abstract
No abstract record available.
Inventors
- 👤 George H Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:03
CPC Classifications
B; B32; B32B; B32B3/00; B32B3/26; B32B3/28; A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F2013/530481; A61F2013/530583; A61F2013/530591; A61F2013/530598; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/234; Y10T428/239
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) | 1920-06-04 | 1920-12-04 | 1921-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-06-04 | 1924-12-04 | 1925-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-06-04 | 1928-12-04 | 1929-06-05 | $7700.00 | Window Closed / Lapsed |