US3175935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making reflective particles and resultant article
Assignee: 3M Co
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Filing: 1961-05-08
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Granted: 1965-03-30
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Expires: 1981-05-08
Abstract
No abstract record available.
Inventors
- 👤 Robert C Vanstrum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:17
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/095; B; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/12; B01J13/125; B29; B29B; B29B9/00; B29B9/16; B29C; B29C70/00; B29C70/58; B29D; B29D11/00; B29D11/00605; B29D11/00615; C03; C03B; C03B19/00; C03B19/10; C03B19/1005; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4035; C08K; C08K9/00; C08K9/08; E; E01; E01F; E01F9/00; E01F9/50; E01F9/506; E01F9/524; G; G02; G02B; G02B5/00; G02B5/12; G02B5/126; G02B5/128; B29B2009/163; B29K; B29K2709/00; B29K2709/08; C08J2363/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24364; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
FREELY-FLOWABLE GRANULES COMPRISING NON-FRIABLE CORES NO GREATER THAN ABOUT 50 MILS IN DIAMETER, SURROUNDED BY AN ADHERENT OUTER LAYER OF DISCRETE NON-TACKY SOLID THERMOADHESIVE THERMOSETTABLE PARTICLES HELD UPON SAID CORE MEMBERS BY A SUBSTANTIALLY CONTINUOUS TACKY RESINOUS LAYER ABOUT SAID CORE MEMBERS AND LOCATED INTERMEDIATE SAID CARE MEMBERS AND SAID OUTER LAYER OF SAID THERMOADHESIVE THERMOSETTABLE PARTICLES, THE THERMOADHESIVE THERMOSETTABLE PARTICLES OF SAID OUTER LAYER BEING AT LEAST SMALL ENOUGH TO PASS A SCREEN OF 50 MESH AND NOT LARGER THAN ABOUT ONE-FIFTH THE DIAMETER OF UNDERLYING CORES.
Claim 2
Dependent Claim
88 words
FREELY-FLOWABLE GRANULES COMPRISING NON-FRIABLE CORES NO GREATER THAN ABOUT 50 MILS IN DIAMETER, SURROUNDED BY AN ADHERENT OUTER LAYER OF DISCRETE NON-TACKY SOLID THERMOADHESIVE THERMOSETTABLE PARTICLES HELD UPON SAID CORE MEMBERS BY A SUBSTANTIALLY CONTINUOUS TACKY RESINOUS LAYER ABOUT SAID CORE MEMBERS AND LOCATED INTERMEDIATE SAID CARE MEMBERS AND SAID OUTER LAYER OF SAID THERMOADHESIVE THERMOSETTABLE PARTICLES, THE THERMOADHESIVE THERMOSETTABLE PARTICLES OF SAID OUTER LAYER BEING AT LEAST SMALL ENOUGH TO PASS A SCREEN OF 50 MESH AND NOT LARGER THAN ABOUT ONE-FIFTH THE DIAMETER OF UNDERLYING CORES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |