US1381118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making insulating composition
Assignee: Individual
•
Filing: 1917-06-22
•
Granted: 1921-06-14
•
Expires: 1937-06-22
Abstract
No abstract record available.
Inventors
- 👤 Gerlach Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:42
CPC Classifications
F; F16; F16L; F16L59/00; C; C04; C04B; C04B26/00; C04B26/02; C04B26/22; C04B26/24; C04B2111/00; C04B2111/00474; C04B2111/00482
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) | 1924-06-13 | 1924-12-13 | 1925-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-06-13 | 1928-12-13 | 1929-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-06-13 | 1932-12-13 | 1933-06-14 | $7700.00 | Window Closed / Lapsed |