US1320652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making radiators
Assignee: —
•
Filing: —
•
Granted: 1919-11-04
•
Expires: 1936-11-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:11
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; B; B23; B23P; B23P15/00; B23P15/26; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; F28D1/0535; F28D1/05366; F28D1/05383; F28F9/001; F28F9/002; F28F9/04; F28F9/16; F28F9/18; F28D21/00; F28D2021/0019; F28D2021/008; F28D2021/0091; F28D2021/0094; F28F2275/00; F28F2275/06; Y; Y10; Y10S; Y10S122/00; Y10S122/16; Y10S411/00; Y10S411/955; Y10S411/972; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49373; Y10T29/49393
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) | 1922-11-03 | 1923-05-05 | 1923-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-11-03 | 1927-05-05 | 1927-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-11-03 | 1931-05-05 | 1931-11-04 | $7700.00 | Window Closed / Lapsed |