US1704174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating sheet and method of making same
Assignee: Individual
•
Filing: 1926-07-29
•
Granted: 1929-03-05
•
Expires: 1946-07-29
Abstract
No abstract record available.
Inventors
- 👤 Cecil M Clarke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:42
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; F16L59/026; F16L59/029; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24215; Y10T428/24231; Y10T428/2424; Y10T428/24248; Y10T428/24256; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24711; Y10T428/24727
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) | 1932-03-04 | 1932-09-03 | 1933-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-03-04 | 1936-09-03 | 1937-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-03-04 | 1940-09-03 | 1941-03-05 | $7700.00 | Window Closed / Lapsed |