Patent US1586984A successfully refreshed from Google Patents.
US1586984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Header connection
Assignee: POWER SPECIALTY Co
•
Filing: 1920-07-09
•
Granted: 1926-06-01
•
Expires: 1940-07-09
Abstract
No abstract record available.
Inventors
- 👤 Ernest H Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:50
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/08; F16L41/082; F16L41/084; F16L41/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49373; Y10T29/49389
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) | 1929-05-31 | 1929-11-30 | 1930-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-05-31 | 1933-11-30 | 1934-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-05-31 | 1937-11-30 | 1938-06-01 | $7700.00 | Window Closed / Lapsed |