Patent US2270734A successfully refreshed from Google Patents.
US2270734A
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Shingle and like material
Assignee: Patent and Licensing Corp
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Filing: 1941-04-11
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Granted: 1942-01-20
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Expires: 1961-04-11
Abstract
No abstract record available.
Inventors
- 👤 Kirschbraun Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:19
CPC Classifications
B; B27; B27M; B27M3/00; B27M3/02; E; E04; E04D; E04D1/00; E04D1/12; E04D1/20; E04D1/26; E04D2001/005; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24421; Y10T428/2443; Y10T428/24446; Y10T428/24455; Y10T428/24802; Y10T428/24893; Y10T428/24909; Y10T428/24934
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) | 1945-01-19 | 1945-07-21 | 1946-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-01-19 | 1949-07-21 | 1950-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-01-19 | 1953-07-21 | 1954-01-20 | $7700.00 | Window Closed / Lapsed |