Patent US1961170A successfully refreshed from Google Patents.
Patent US1771216A successfully refreshed from Google Patents.
US1771216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating body of spun glass
Assignee: Individual
•
Filing: 1926-12-09
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Granted: 1930-07-22
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Expires: 1946-12-09
Abstract
No abstract record available.
Inventors
- 👤 Gossler Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:25
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; F16L59/029; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24091; Y10T428/24099; Y10T428/24132; Y10T428/28; Y10T428/2852; Y10T428/2857; Y10T442/00; Y10T442/60; Y10T442/643; Y10T442/644; Y10T442/681
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) | 1933-07-21 | 1934-01-20 | 1934-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-07-21 | 1938-01-20 | 1938-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-07-21 | 1942-01-20 | 1942-07-22 | $7700.00 | Window Closed / Lapsed |