US1476050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling freshly-formed sections of plaster board
Assignee: BUTTRESS Manufacturing Co
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Filing: 1921-08-30
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Granted: 1923-12-04
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Expires: 1941-08-30
Abstract
No abstract record available.
Inventors
- 👤 George A Buttress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:33
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/52; B65G47/53; B65G47/54; B65G49/00; B65G49/05; B65G49/08; B65H; B65H31/00; B65H31/04; B65H31/06
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) | 1926-12-03 | 1927-06-04 | 1927-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-12-03 | 1931-06-04 | 1931-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-12-03 | 1935-06-04 | 1935-12-04 | $7700.00 | Window Closed / Lapsed |