US2101836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal insulating building unit
Assignee: ELB PRODUCTS Inc
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Filing: 1936-10-21
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Granted: 1937-12-14
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Expires: 1956-10-21
Abstract
No abstract record available.
Inventors
- 👤 Edward L Benedict
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:05
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/08; B; B63; B63B; B63B3/00; B63B3/14; B63B3/68; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/7654; E04B1/78; E04B1/80; E04B1/806; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24264; Y10T428/24628; Y10T428/24661; Y10T428/24669; Y10T428/24686; Y10T428/24694; Y10T428/24711; Y10T428/24727
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) | 1940-12-13 | 1941-06-14 | 1941-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-12-13 | 1945-06-14 | 1945-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-12-13 | 1949-06-14 | 1949-12-14 | $7700.00 | Window Closed / Lapsed |