US1345693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite heat-insulating sheet
Assignee: Individual
•
Filing: 1918-12-16
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Granted: 1920-07-06
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Expires: 1938-12-16
Abstract
No abstract record available.
Inventors
- 👤 David W Pye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:24
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/16; E04C2/18; F; F16; F16L; F16L59/00; F16L59/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24281; Y10T428/24289; Y10T428/24322; Y10T428/24331
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) | 1923-07-06 | 1924-01-05 | 1924-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-07-06 | 1928-01-05 | 1928-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-07-06 | 1932-01-05 | 1932-07-06 | $7700.00 | Window Closed / Lapsed |