US1028808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for preventing the freezing of water in the circulating systems of automobile-engines.
Assignee: PERCY TEIXEIRA DE MATTOS
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Filing: 1911-02-21
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Granted: 1912-06-04
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Expires: 1931-02-21
Abstract
No abstract record available.
Inventors
- 👤 Howard S Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:16
CPC Classifications
E; E03; E03B; E03B7/00; E03B7/09; E03B7/10; E03B7/12; Y; Y10; Y10T; Y10T137/00; Y10T137/1189; Y10T137/1353; Y10T137/7722; Y10T137/7734; Y10T137/8158
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) | 1915-06-04 | 1915-12-04 | 1916-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-06-04 | 1919-12-04 | 1920-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-06-04 | 1923-12-04 | 1924-06-04 | $7700.00 | Window Closed / Lapsed |