Patent US2307734A successfully refreshed from Google Patents.
US2307734A
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US
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Ceramic shingle
Assignee: TILO ROOFING Co Inc
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Filing: 1942-05-26
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Granted: 1943-01-12
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Expires: 1962-05-26
Abstract
No abstract record available.
Inventors
- 👤 Vault Aylett F De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:14
CPC Classifications
E; E04; E04D; E04D1/00; E04D1/02; E04D1/08; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1041; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24413; Y10T428/24421; Y10T428/2443; Y10T428/24479; Y10T428/24612; Y10T428/2462; Y10T428/24802; Y10T428/24893; Y10T428/24901
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) | 1946-01-11 | 1946-07-13 | 1947-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-01-11 | 1950-07-13 | 1951-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-01-11 | 1954-07-13 | 1955-01-12 | $7700.00 | Window Closed / Lapsed |